Scientific truth is always paradox, if judged by everyday experience, which catches only the delusive appearance of things.

Wages are determined by the bitter struggle between capitalist and worker.

The product of mental labor - science - always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.

Surplus-value and the rate of surplus-value are... the invisible essence to be investigated, whereas the rate of profit and hence the form of surplus-value as profit are visible surface phenomena

From the outset, the Christian was the theorizing Jew, the Jew is therefore the practical Christian, and the practical Christian has become a Jew again.

Society is a sort of organism on the growth of which conscious efforts can exercise little effect.

The more of himself man attributes to God, the less he has left in himself.